Ducati Monster Forum

Hey guys,
Looking at a brake upgrade soon. I'm on a 98 m750, with the old 40mm mounts on some 900 forks. Currently 2pot brembo on the LHS.

Have been trying to hunt down sone 40mm 4pot , but can't find anything for a reasonable price, as I'd need new lines and a new disc or probably set. $$ is my main restriction in regards to mods.

Recently started reconsidering the nissin 6 pot. It was a possibility a while back until i saw the price of a set of calipers. But now I'm thinking why not just 1 side only?

How different would performance/characteristics be between these 2 setups? I have a larger coffin master already, was sourced for the dual 4pot setup. Would this suffice for the master if I got the nissin?

Cheers,
Nibor ;D

I would look at getting a single 4pot brembo and an upgraded master cyclinder.  if thats not enough then look for the stuff to run a second caliper.

if it is sufficent braking, you will have saved a nice chunk of unsprung weight.

BOOM. good idea.

I'm incredibly confused:   The original equipment on the M900 was dual goldlines - each being 2-pad, 1-pin, 4-piston (30/34) calipers.   Not sure how you have fitted 2-piston calipers to them, or why. 


For a brake upgrade, the goldlines are "good" - but look at better pads.  Every OEM Brembo pad has been pretty crap from my experience.  Next step (co-equal step): check your brake lines - if you have rubber brake lines, its time to spend a few bucks to get some braided stainless lines - removing all flex from this part of the system.

Upgrade your master cylinder to a radial-action master cylinder - I suggest one from a new-fangled superbike (749-999, 848-1098-1198) or Monster (1100). The Brembo GP 19x18 is reasonably priced race piece - you'll need to run a pressure switch for brake light activation though.   Note, its a cast/forged master cylinder, and while its good - the billet ones are certainly superior (and reflect it in their 10x cost)

If you want to run a single caliper, I wouldn't hesitate to recommend the ISR 6-piston, 6-pad billet monoblocks (22-032-OA/OB).  I've got dual 22-032 calipers on my M900, and its awesome.

Here's a shot of the front end:
(https://lh3.googleusercontent.com/-9PPpTCSaKFo/S19pUPU_veI/AAAAAAAAFOA/E8x3wwSvajY/w500-h334-k/IMG_2016.JPG)
(https://lh6.googleusercontent.com/-npua0T34LJk/S19pUtjYynI/AAAAAAAAFOI/mGdeNtfDYjA/w500-h334-k/IMG_2022.JPG)
(https://lh5.googleusercontent.com/-sERuJZ2_M0o/TRk6JmfevgI/AAAAAAAAH28/jAhcGiiQ0yQ/s771/IMG_1096.jpg)

That is a family-size helping of brakes, right there.

Beat me to it, captain!

Money is the main factor here, so billet parts are out of the question unless you're shouting :P I like the idea of the single 4pot upgrade, but I don't want to want to change the setup again, hence leaning towards the dual 4s or the single 6.

http://www.gothamcycles.com/servlet/the-713/Ducati-Brembo-Front-Brake/Detail (http://www.gothamcycles.com/servlet/the-713/Ducati-Brembo-Front-Brake/Detail)

not a bad price...

I've been tracking a single 4-pad set-up for a while now and have no complaints.  If you're going with this set up I would refrain from a large bore master unless necessary, as you'll have a rock hard wooden lever with no feel.  Bigger and more is not always better (but usually more expensive).  I've got a 999 radial but perfer the smaller bore coffin so that's what I run.   For you numbers types, heres a chart that might help.

http://www.vintagebrake.com/mastercylinder.htm (http://www.vintagebrake.com/mastercylinder.htm)

Get out of here with that silly advice.  There's no feel whatsoever in a coffin master because its axial action - the lever and fluid don't act in the same direction.  The coffins were, originally, a downgrade from the original axial goldlines.   And its not all about bore - the pivot makes a big difference in how it feels.  That's why there's multiple 16mm, 18mm, and 19mm bore master cylinders by Brembo.     I love the 19x18, others like the 19x20.   I also have a 16x18, but thought the 16x16 was no good.

I thought the single caliper setups were just the 4-piston 2-pad goldlines (essentially "half" the two caliper system), and the only two piston calipers that jump to mind for OEM ducati equipment are either rear calipers or the 620/S2R800 black brembos which use an adapter plate to fit the forks properly

http://www.vintagebrake.com/mastercylinder.htm (http://www.vintagebrake.com/mastercylinder.htm)
[/quote]

Bookmarked  [thumbsup]

sounds like he's got a frankenstein system or something else.  all of the 40mm calipers have 4 pistons .  even going back to the mid 80s.. the F1 limited models (laguna, monti)  had the P432s on it with 40mm bolts.  (432 i.e. 4x32mm)

No 2xpiston calipers with 40mm mounts ever made by brembo.

The 1997 600SS was the first bike with a single front 40mm caliper (type 3034).  I don't remember what master is on that bike, I'll have to look when I get home, but I think its a PS13

(http://www.motorcyclespecs.co.za/Gallery/Ducati%20750F1%20Montjuich%20%204.jpg)

I'm running a 4-pad caliper (has 4 pistons of 34mm diameter), CP211 pads, and a 16mm diameter goldline master on my M750 commuter.

It stops the bike just fine.

But, I'll be charitable and describe the lever feel as 'wooden'.

---------------------------------------------

The Sport Classics had 2-pot calipers on the front, needed for clearance to the spoked wheels.

same ones as on the S2R800

duhhhh, i already said that... you guys!

Y'all are both wrong.

Parts Catalogues:
610.4.093.1A Brake caliper (R.H.) - GT1000

610.4.076.1A R.H. brake caliper - S2R800

Owner's Manuals
BREMBO 30/32a pistons.  - GT1000

BREMBO PF2x28 2 Pistons.  - S2R800

Pads
FDB2006ST - GT1000

FDB2018ST  - S2R800

SURPRISE SURPRISE SURPRISE!
(http://www.timvp.com/gomer11.jpg)

fyi:   i could care less about the oem pads.  i still think they are all garbage.

pads look the same too, but are different:

108.9 x 41.3 x 7.6mm

and

94 x 37.3 x 7.5mm

If It's Not Scottish It's CRAP! (http://www.youtube.com/watch?v=bzG_J7RCGS0&t=0m2s#)

SC and S2R 800 look similar, but are different sizes (I think)

Lol at pAst umpteen posts. I get one thing wrong and look at the dust stirred up :P sorry you are right, I have a single 4pot on the front, not sure why I typed 2pot.

Thread title still stands, I'm after the pro's and cons of either. Either way I will be running braided lines.

- the single 6 will be heavier than a 4pot, but compared to two 4pots?
- also only 1 disk required with the single, obviously.
- which will perform better in aggressive road conditions? I'm guessing the dual 4's as they total more braking surface area?
- there would be more maintenance required with the 6pot? Expensive with pads?
- I'll be getting new discs all round, again money is a factor so I'm currently looking at china ebays for about $230 front and rear. Would I need a higher spec disc with the 6pot?

Anything else you may think is relevant or and idea, shout it out :)
 [beer]

In summary. Braided lines, soft pads, floating rotor buttons and better master cylinder (optional) may do it. There are threads on making your rotor buttons fully floating.
 
If all that isn't enough, used calipers and rotors come up on the forum regularly.

and with some used calipers, you'll need an adaptor from 40-65mm for mounting...

http://www.yoyodyneti.com/ProductInfo.aspx?productid=70.2005RL (http://www.yoyodyneti.com/ProductInfo.aspx?productid=70.2005RL)

(http://www.yoyodyneti.com/images/400web/brembo/br_20_44du_32.jpg)

seems to be plenty of 40mm spaced callipers about... unless your going for the 4pad callipers i don't see the benefit in using adapters...

maybe I'm missing something here but in my mind the 40mm 2pad 4pot callipers with a traditional pee cup gold line radial master seem the best low budget upgrade for this bike.

if you already have 1 4pot then this is what I would do.  If for no other reason then that a single nissin (as awesome a brake as they are) will look out of place and weird on a monster.

they look ok on a Gran Canyon, which is pretty much a Ducati

those are neither th 6 pot nissin's being discussed nor a motorcycle that is being discussed.

  do they have a know-it-all merit badge your gunning for or are you just addicted to impressing strangers on the internet? :P

option 3.

i already have that merit badge.

Just scored a pair of 4pots with braided lines. Should do well with the 16mm coffin master I got a while back. Cheers for the help guys :)

i have a braided line and some sintered pads on my 97 600/750 with the std 13mm coffin master, not sure if the pads are ducati performance "racing" or dunlopad now.  i tend to fit what i have lying around when i need shit like that.  works well.  never tried locking it up tho.

biggest issue on the early 600 and 750 is the crap marzocchi 40mm forks with no compression damping in the first 2/3 of the travel and soft springs.  better forks make quite a difference to the braking platform.

a big radial master on a single disc could leave you with very little feel.

first single disc was 91 - 93 750ss, then 94 onward 600ss and 600m and 97 750m.  all had 13mm coffin masters.

if you get a later front end with 43mm forks you can fit the 65mm 4 pad calipers.  they're very nice.  the 748r and 996r were always sensational under brakes, better than anything we'd had previously.  they really stood out the first time you rode one.